CN217279773U - Electric plug type small smoke detector - Google Patents

Abstract

The utility model discloses an electric plug type small smoke detector, which comprises an installation shell, wherein a transformer is arranged in the installation shell, an electric plug is electrically connected on the transformer, and the electric plug can be inserted into a power socket after outwards penetrating out of the installation shell; a PCB circuit board electrically connected with the transformer is arranged in the mounting shell, the PCB circuit board is electrically connected with the sensor assembly, and a data transmission device used for sending detection data of the sensor assembly is integrated on the PCB circuit board; the sensor assembly at least comprises a carbon monoxide sensor, a carbon dioxide sensor and a smoke sensor; an air inlet and an air outlet are arranged on the side walls of two opposite sides of the mounting shell, an exhaust fan is arranged on the inner side of the air outlet, and the carbon monoxide sensor and the carbon dioxide sensor are positioned between the air inlet and the air outlet; by adopting the structure, the carbon monoxide sensor and the carbon dioxide sensor can detect the air in the area through the operation of the exhaust fan, so that the phenomenon that smoke is less and cannot be detected in time is effectively avoided.

Description

Electric plug type small smoke detector

Technical Field

The utility model relates to a technical field of device is felt to the cigarette, concretely relates to small-size smoke detector of electric plug formula.

Background

The traditional fire prevention detection equipment is generally arranged at the top of a room, only aiming at the detection of smoke or open fire, when the fire is in an initial stage, the smoke generated by combustion is very little, and the open fire does not appear, so that the situation of the initial stage fire cannot be predicted, the fire is difficult to control, the coverage area of the detection equipment is very limited, the site cannot be detected in all directions and no dead angle is generated, corners which are difficult to detect are inevitably generated in the site, in daily life, the corners of the site are easy to serve as places for accumulating articles and belong to the monitoring dead angle of a traditional sensor, so the corners are easy to become inflammable areas in the site, the corners of the site are difficult to cover by the traditional fire prevention detection equipment, and the initial stage fire cannot be comprehensively detected;

therefore, it is urgent to provide a fire prevention apparatus which is portable, easy to install and use, and capable of comprehensively detecting an initial fire.

SUMMERY OF THE UTILITY MODEL

According to the technical problem, the utility model provides a small-size smoke detector of electric plug formula's main objective is that the smoke detector through electric plug formula can install fast in the region that has power plug to carry out comprehensive conflagration detection to this region, solved the place and appeared the corner that can't detect, and initial stage conflagration smog is few and open flame does not appear, leads to being difficult to the technical problem of prediction initial stage conflagration.

In light of the above technical problems to be solved, the following technical solutions are proposed:

the utility model provides an electric plug type small smoke detector, which comprises an installation shell, wherein a transformer is arranged in the installation shell, an electric plug is electrically connected on the transformer, and the electric plug can penetrate out of the installation shell and then can be inserted into a power socket; a PCB circuit board electrically connected with the transformer is arranged in the mounting shell, wherein the PCB circuit board is electrically connected with the sensor assembly, a data transmission device used for sending detection data of the sensor assembly is integrated on the PCB circuit board, and a transmission antenna of the data transmission device extends out of the mounting shell; the sensor assembly at least comprises a carbon monoxide sensor, a carbon dioxide sensor and a smoke sensor; an air inlet and an air outlet are formed in the side walls of the two opposite sides of the mounting shell, an exhaust fan is arranged on the inner side of the air outlet, and the carbon monoxide sensor and the carbon dioxide sensor are positioned between the air inlet and the air outlet;

adopt above-mentioned structure, utilize carbon monoxide sensor and carbon dioxide sensor to detect carbon monoxide content and carbon dioxide content in the air in with the air suction installation casing through the exhaust fan for carbon monoxide sensor and carbon dioxide sensor are surveyed the air in place region constantly, avoid the produced smog of initial stage conflagration less unable in time to survey effectively.

Furthermore, the sensor assembly also comprises an infrared temperature sensor, the infrared temperature sensor is integrated on the PCB, and an infrared probe of the infrared temperature sensor penetrates out of the mounting shell;

adopt above-mentioned structure, through this infrared temperature sensor of PCB circuit board control, detect the air temperature who sets for the region, can release a large amount of infrared rays when the conflagration breaing out to make the temperature of surrounding environment rise fast, utilize infrared temperature sensor can detect initial stage conflagration effectively, know the intensity of a fire scope in real time.

Furthermore, the sensor assembly also comprises a humidity sensor, the humidity sensor comprises a humidity sensitive element and at least two wiring copper columns, one end of each wiring copper column is connected with the PCB, and the other end of each wiring copper column penetrates through the mounting shell and is connected with the humidity sensitive element;

by adopting the structure, the humidity sensitive element is arranged outside the mounting shell and is used for detecting the air humidity of the set area, so that the environmental change influenced by the fire can be more sensitively detected; the surrounding environment is effectively and comprehensively detected, so that initial fire can be prevented more accurately.

Furthermore, the smoke sensor is integrated on the PCB, and a smoke probe of the smoke sensor penetrates out of the mounting shell;

by adopting the structure, the smoke sensor controlled by the PCB penetrates out of the installation shell, smoke particles in the area are detected by the smoke probe arranged outside the installation shell, and the problem that the smoke sensor is difficult to detect because the smoke particles are scattered by airflow formed by the exhaust fan in the installation shell in the air suction installation shell is avoided.

Further, data transmission device is including integrated communication module and the central processing unit on the PCB circuit board, the signal transmission that infrared temperature sensor, smoke transducer, humidity transducer, carbon monoxide sensor and carbon dioxide sensor sent gives central processing unit, central processing unit is used for handling received signal, communication module is used for handling the data transmission that central processing unit obtained and gives fire alarm major control system.

By adopting the structure, the environmental data collected by each sensor is sent to the fire alarm main control system in the set area for processing through the data transmission device, false alarm or detection error can be avoided through the fire alarm main control system for confirming again, and panic caused by alarm noise sent out in the area due to false alarm or detection error is effectively avoided.

Further, the transformer and the PCB are positioned on two opposite sides of the interior of the mounting shell; the electric plug is connected to one side of the transformer, which is far away from the PCB; the infrared temperature sensor, the smoke sensor and the humidity sensor are integrated on one side of the PCB, which is far away from the transformer;

by adopting the structure, the PCB and the transformer are abducted, the installation space is reserved between the PCB and the transformer, and the electric plug can penetrate out of the installation shell to be matched with the power socket and the arrangement of the infrared temperature sensor, the smoke sensor and the humidity sensor is facilitated.

Furthermore, a partition board is fixed in the installation shell, is positioned on one side of the PCB close to the transformer and is arranged opposite to the transformer, so that an air passing channel is formed by the common enclosure of the partition board, the transformer and the side wall of the installation shell, and the air inlet and the air outlet are respectively positioned at two ends of the air passing channel;

by adopting the structure, the air passing channel is formed between the PCB and the transformer in a surrounding way through the partition plate, so that the air suction and exhaust effects of the exhaust fan are more remarkable, dust can be prevented from entering the cavity for installing the PCB, and the normal operation of the PCB is prevented from being influenced by the dust.

Further, the carbon monoxide sensor and the carbon dioxide sensor are oppositely fixed on the inner wall of the mounting shell and are electrically connected with the PCB through power lines; the probe of the carbon monoxide sensor and the probe of the carbon dioxide sensor both face the central axis of the air passage;

by adopting the structure, the probe of the carbon monoxide sensor and the probe of the carbon dioxide sensor can be more fully positioned in the air sucked into the installation shell by the exhaust fan, and the accuracy of detecting the content of carbon monoxide and the content of carbon dioxide in the air by the carbon monoxide sensor and the carbon dioxide sensor is effectively improved.

Furthermore, air inlet and air outlet are provided with air port filter screens for filtering dust;

adopt above-mentioned structure, can avoid great dust or dust to get into installation casing through the wind gap filter screen to influence the precision of carbon monoxide sensor and carbon dioxide sensor.

Compared with the prior art, the beneficial effects of the utility model are that:

the small-size smoke detector of electric plug formula above adopting, be convenient for install in the corner that has supply socket through the electric plug, be convenient for survey the corner that traditional smoke detector does not cover, and survey comprehensively through carbon monoxide sensor and carbon dioxide sensor and smoke transducer, the important smog that produces when burning is few and the initial stage conflagration of naked light does not appear, respond to the slight change that initial stage conflagration caused to the surrounding environment rapidly, prevented effectively that it does not even discover to lead to appearing great scale amount of conflagration circumstances to take place because of initial stage conflagration.

Drawings

Fig. 1 is a schematic perspective view of an electrical plug type small smoke detector provided by the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in the direction B;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic diagram of an assembly of a PCB circuit board and a sensor assembly according to an embodiment;

FIG. 5 is a schematic view showing the assembly of the carbon monoxide sensor and the carbon dioxide sensor in the example.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Referring to fig. 1 to 5, the utility model provides an electric plug type small smoke detector which can be inserted into a power socket for use, is convenient for being applied to a flammable area or being installed at an indoor corner, is convenient to install, and can comprehensively detect the corner which is difficult to be detected by the traditional smoke detector, thereby finding out the initial fire in time for prevention and control; the power supply device mainly comprises an installation shell 1, wherein a transformer 2 is arranged in the installation shell 1, an electric plug 21 is arranged on one side of the installation shell 1, the electric plug 21 penetrates through the installation shell 1 to be connected with the transformer 2, the electric plug 21 is inserted into a power socket, alternating current voltage is adjusted to be electric energy with set voltage through the transformer 2, and electric energy required by operation of all components can be provided.

Preferably, the opposite two sides of the installation shell 1 are provided with an air inlet 11 and an air outlet 12, the air inlet 11 and the air outlet form an air passing channel, the installation shell 1 is internally provided with a carbon monoxide sensor 3 and a carbon dioxide sensor 4 corresponding to the air passing channel, and the air outlet 12 is provided with an exhaust fan 5; air is sucked into the installation shell 1 from the air inlet 11 through the exhaust fan 5, the carbon monoxide content and the carbon dioxide content in the air are detected through the carbon monoxide sensor 3 and the carbon dioxide sensor 4, then the air sucked into the installation shell 1 is exhausted through the exhaust outlet 12, so that the air is sucked and exhausted through the exhaust fan 5 to form an air flow path, and the carbon monoxide sensor 3 and the carbon dioxide sensor 4 are matched to accurately detect the carbon monoxide content and the carbon dioxide content of the air; the mounting shell 1 is preferably arranged to be of a cuboid structure, so that an air inlet 11 and an air outlet 12 are conveniently formed, and the interior of the mounting shell 1 is more favorable for fixing the exhaust fan 5; preferably, the carbon monoxide sensor 3 and the carbon dioxide sensor 4 are fixed in the mounting case 1 in a vertically opposite manner, and the probe of the carbon monoxide sensor 3 and the probe of the carbon dioxide sensor 4 are respectively directed toward the central axis of the air passage, thereby more sufficiently contacting the air sucked into the mounting case 1 by the exhaust fan 5.

Preferably, a PCB 6 electrically connected to the transformer 2 is disposed in the mounting housing 1 for controlling the carbon monoxide sensor 3, the carbon dioxide sensor 4, the infrared temperature sensor 7, the smoke sensor 8 and the humidity sensor 9, the infrared temperature sensor 7 is integrated on the PCB 6, and an end portion with an infrared probe 71 penetrates out of the mounting housing 1, so that the infrared probe 71 is disposed outside the mounting housing 1 for detecting indoor temperature change, and whether a rapid temperature rise condition caused by a fire exists or not is favorable for determining an initial fire; the smoke sensor 8 is integrated on the PCB 6, and the end part with the smoke sensing probe 81 is penetrated out of the mounting shell 1, so that the smoke sensing probe 81 is arranged outside the mounting shell 1 and is used for detecting large-particle smoke generated in fire; this humidity transducer 9 includes moisture-sensitive element 91 and connects a plurality of wiring copper post 92 in the bottom of moisture-sensitive element 91, and this wiring copper post 92 sets up two at least, preferably sets up to four in this embodiment, places moisture-sensitive element 91 in the outside of installation casing 1, and the wiring copper post 92 of moisture-sensitive element 91 bottom penetrates installation casing 1 inside integrated on PCB circuit board 6 for detect the humidity of the air in the settlement area.

Preferably, the PCB 6 is integrated with a data transmission device for transmitting the environmental data collected by the sensor assembly, and mainly includes a central processor 61 and a communication module 62, wherein a transmission antenna of the communication module 62 extends out of the mounting housing 1 to match the coverage area of the signal; the external temperature sensor 7, the smoke sensor 8, the humidity sensor 9, the carbon monoxide sensor 3 and the carbon dioxide sensor 4 collect signals, the central processing unit 61 converts the collected signals into data which can be sent, and then the data is sent to the fire alarm main control system through the communication module 62, and each sensor either directly sends the signals to the central processing unit 61 or sends the signals to the central processing unit 61 through the signal processing unit, which belong to the mature technology and are not described herein; the communication mode can adopt bluetooth, zigbee etc. and the data that fire alarm master control system analysis sent are carried out comprehensive judgement to carbon monoxide content, carbon dioxide content, smog granule content and air temperature and humidity, when monitoring data such as carbon monoxide content, carbon dioxide content, smog granule content in local area form the jump increase, or when air humidity descends fast, just can monitor out initial stage conflagration accurately, reduce property loss as far as possible.

Preferably, the side of the transformer 2 away from the PCB 6 is connected to an electrical plug 21, and the electrical plug 21 vertically penetrates through the mounting housing 1; an infrared temperature sensor 7, a smoke sensor 8 and a humidity sensor 9 are integrated on one side of the PCB 6 away from the transformer 2; the air passing channel is arranged between the transformer 2 and the PCB 6, the air inlet 11 is arranged on the adjacent side of the mounting shell 1 penetrating out of the side surface of the electric plug 21, and the air outlet 12 is arranged on the side wall of the shell 1 opposite to the air inlet 11; preferably, a tuyere screen 10 is disposed on the air inlet 11 and the air outlet 12, and the tuyere screen 10 can prevent excessive dust from entering the installation case 1, thereby affecting the detection accuracy.

Preferably, a partition plate 13 is further disposed in the mounting housing 1, the partition plate 13 is located on one side of the PCB 6 close to the transformer 2, so that the partition plate 13, the side wall of the transformer 2 far from the electrical plug 21 and the side wall of the mounting housing 1 jointly enclose the air passing channel, the air passing channel can cooperate with the carbon monoxide sensor 3 and the carbon dioxide sensor 4 for detection through the operation of the exhaust fan 5 and the air inlet 11 and the air outlet 12 formed on the mounting housing 1, and the partition plate 13 can also prevent particles in the air from entering the cavity where the PCB 6 is located, and thus prevent the PCB 6 from being failed.

The foregoing detailed description of embodiments of the invention has been presented in terms of examples illustrated in the drawings, wherein like reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described above with reference to the accompanying drawings are illustrative and intended to explain the present invention, and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims (9)

1. An electric plug type small smoke detector comprises an installation shell (1), wherein a transformer (2) is arranged in the installation shell (1), an electric plug (21) is electrically connected to the transformer (2), and the electric plug (21) penetrates out of the installation shell (1) and can be inserted into a power socket; install inside PCB circuit board (6) that is provided with and is connected with transformer (2) electricity of casing (1), its characterized in that: the PCB (6) is electrically connected with the sensor assembly, a data transmission device for sending detection data of the sensor assembly is integrated on the PCB (6), and a transmission antenna of the data transmission device extends out of the mounting shell (1); the sensor assembly comprises at least a carbon monoxide sensor (3), a carbon dioxide sensor (4) and a smoke sensor (8); the air inlet (11) and the air outlet (12) are formed in the side walls of the two opposite sides of the mounting shell (1), the exhaust fan (5) is arranged on the inner side of the air outlet (12), and the carbon monoxide sensor (3) and the carbon dioxide sensor (4) are located between the air inlet (11) and the air outlet (12).

2. An electrical plug-type miniature smoke sensor according to claim 1, wherein: the sensor assembly further comprises an infrared temperature sensor (7), the infrared temperature sensor (7) is integrated on the PCB (6), and an infrared probe (71) of the infrared temperature sensor (7) penetrates out of the mounting shell (1).

3. An electrical plug-type miniature smoke sensor according to claim 2, wherein: the sensor assembly further comprises a humidity sensor (9), the humidity sensor (9) comprises a humidity sensitive element (91) and at least two wiring copper columns (92), one end of each wiring copper column (92) is connected with the PCB (6), and the other end of each wiring copper column (92) penetrates out of the mounting shell (1) and then is connected with the humidity sensitive element (91).

4. An electrical plug-type smokeless sensor according to claim 1, 2 or 3, characterized in that: the smoke sensor (8) is integrated on the PCB (6), and a smoke probe (81) of the smoke sensor (8) penetrates out of the mounting shell (1).

5. The electrical plug-type smokeless sensor of claim 3, wherein: data transmission device is including integrated communication module (62) and central processing unit (61) on PCB circuit board (6), signal transmission that infrared temperature sensor (7), smoke transducer (8), humidity transducer (9), carbon monoxide sensor (3) and carbon dioxide sensor (4) sent gives central processing unit (61), central processing unit (61) are used for handling received signal, communication module (62) are used for handling central processing unit (61) the data transmission who obtains and send fire alarm major control system.

6. The electrical plug-type vaping sensor of claim 3, wherein: the transformer (2) and the PCB (6) are positioned on two opposite sides in the mounting shell (1); the electric plug (21) is connected to one side of the transformer (2) far away from the PCB (6); the PCB circuit board (6) is integrated with the infrared temperature sensor (7), the smoke sensor (8) and the humidity sensor (9) on one side far away from the transformer (2).

7. An electrical plug-type miniature smoke sensor according to claim 6, wherein: install casing (1) internal fixation and have baffle (13), this baffle (13) are located PCB circuit board (6) and are close to one side of transformer (2) to set up with transformer (2) relatively, thereby surround jointly through baffle (13), transformer (2) and the lateral wall of installation casing (1) and form the wind passageway, air inlet (11) and air exhaust export (12) are located the both ends of wind passageway respectively.

8. An electrical plug-type miniature smoke sensor according to claim 7, wherein: the carbon monoxide sensor (3) and the carbon dioxide sensor (4) are relatively fixed on the inner wall of the mounting shell (1) and are electrically connected with the PCB (6) through power lines; the probe of the carbon monoxide sensor (3) and the probe of the carbon dioxide sensor (4) both face the central axis of the air passing channel.

9. An electrical plug-type miniature smoke sensor according to claim 1, wherein: and air port filter screens (10) for filtering dust are arranged in the air inlet (11) and the air exhaust outlet (12).

Images